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Finding the Third Proportional to 74.63 and 92.63

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Solution

The third proportional to 74.63 and 92.63 is: 114.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74.63 : 92.63 = 92.63 : x
  2. Step 2: Convert to fraction form
    74.63/92.63 = 92.63/x
  3. Step 3: Cross multiply
    74.63x = 92.63 × 92.63
  4. Step 4: Simplify right side
    74.63x = 8,579.39
  5. Step 5: Solve for x
    x = 8,579.39/74.63
  6. Step 6: Final answer
    x = 114.97

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Why These Related Problems?

These problems maintain the same ratio (1.24) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.